Structural and optical properties of zinc sulphide-polyvinyl alcohol (ZnS-PVA) nanocomposite thin films: effect of Zn source concentration

被引：23
|
作者：
Baishya, U. [1 ]
Sarkar, D. [1 ]
机构：
[1] Gauhati Univ, Dept Phys, Gauhati 781014, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2011年 / 34卷 / 07期
关键词：
Zinc sulphide; polyvinyl alcohol; nanocomposite; chemical bath deposition;
D O I：
10.1007/s12034-011-0316-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnS-PVA nanocomposite thin films are grown by chemical bath deposition (CBD) method by varying the concentration of zinc source. Formation of nanocrystalline hexagonal ZnS is confirmed by X-ray diffraction. Hexagonal form is predominant at some lower concentration. The morphological properties of the films are determined by transmission electron microscope (TEM). The particle size as given by TEM indicates increase in particle size. Bandgap measured from UV-Visible transmission spectra shows a decreasing trend with decrease of Zn source concentration. Photoluminescence (PL) measurement showed blue emission centred at 417 nm and that the intensity decreases with decrease in Zn source concentration.
引用
收藏
页码：1285 / 1288
页数：4
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